Sludge acid — Impure dark colored sulphuric acid that has been used in the refining of petroleum. [Webster 1913 Suppl.] … The Collaborative International Dictionary of English
sludge acid — noun : waste or spent sulfuric acid; especially : such acid derived from refining petroleum oils or crude benzenes … Useful english dictionary
acid sludge — noun : gummy material that separates from a petroleum oil on treatment with sulfuric acid … Useful english dictionary
Abiogenic petroleum origin — is a largely abandoned hypothesis that was proposed as an alternative to theory of biological petroleum origin. It was relatively popular in the past, but it went largely forgotten at the end of the 20th century after it failed to predict the… … Wikipedia
environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations … Universalium
Industrial wastewater treatment — covers the mechanisms and processes used to treat waters that have been contaminated in some way by anthropogenic industrial or commercial activities prior to its release into the environment or its re use.Most industries produce some wet waste… … Wikipedia
environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… … Universalium
Motor oil — For the TV documentary focused on the Edmonton Oilers of the National Hockey League, see Oil Change (TV Series). Motor oil sample Motor oil or engine oil is an oil used for lubrication of various internal combustion engines. The main function is… … Wikipedia
Hydrogen sulfide — Systematic name … Wikipedia
Oil refinery — Anacortes Refinery (Tesoro), on the north end of March Point southeast of Anacortes, Washington An oil refinery or petroleum refinery is an industrial process plant where crude oil is processed and refined into more useful petroleum products,… … Wikipedia
Anaerobic digestion — and regenerative thermal oxidiser component of Lübeck mechanical biological treatment plant in Germany, 2007 … Wikipedia